Water-heater.



v. F. DECKERT.

WATER HEATER.

APPLICATION FILED OCT. i0. 19!].

INVENTOR. Wryz/ 2510-9051924 Patented Jan. 7, 1919.

TORNEY.

VIRGIL I. DECKERT, OF MINNEAPOLIS, MTNNESOTA.

WATER-HEATER.

Specification of Letters Patent.

Patented J an. '2', 1919.

Application filed October 10, 1917. Serial No. 195,844.

To all whom it may concern:

Be it known'that I, VIRGIL F. DECKERT, a citizen of the United States,residing at Minneapolis, in the county of Hennepin and State ofMinnesota, have invented certain new and useful Improvements in ater-Heaters, of which the following is a specification.

My invention relates to water heaters and has for its object to providea novel form of water heater adapted to be positioned in the circulatorysystem of ordinary heating apparatus for heating buildings such as hotwater heating plants or steam heating plants. It is a principal objectof my invention to provide such a device which shall contain amultiplicity of passages through which the water to be heated may becaused to flow, said passage-ways being themselves exposed to anextended flow of the heating medium such as steam or hot water. It isalso an object of my invention in this connection to provide such adevice which may be conveniently fabricated of cast metal in tw piecesand assembled with only one simple annular joint thus insuring tightnessand simplicity of packing.

The full objects and advantages of my invention will appear inconnection with the detailed description thereof and are particularlypointed out in the claims.

In the drawings, illustrating the application of my inventionin oneform, Figure 1 is a sectional elevational view of my invention. Fig. 2is a transverse sectional view on line 2-2 of Fig. 1. Fig. 3 is atransverse sectional view on line 33 of Fig. 1, and'Fig. 4 is a sectionon line 4-'l of Fig. 1.

As illustrated my water heater comprises an inner casting member 10 andan outer shell 11. The shell 11 is a cylinder having a closed end 12.and an open end surrounded by a flange 13 which flange engages acorresponding flange 14: formed in conjunction with the end wall 15 ofthe central member 10. Apacking-ring 16 extends between flanges 13 and14 and by meansof bolts 17 the parts are held together in water tightrelation. Eye members 18 upon the top of the cylindrical portion of theshell 11 are adapted to serve as hangersby which the shell 11 and theinclosed core or interior member 10 are suspended in a horizontalposition from the ceilingwor from brackets extending from the wall.Inlet and outlet pipes 19 and 20 respectively admit and discharge theheating medium of the circulatory system to the interior of the shellwhere it is constrained to effectively flow around the parts of theinterior member 10 as will hereinafter be pointed out.

Formed in conjunction with the end plate 15 and the connected flange 1%of the interior member 10 is a cylindrical casing 21 having an end 22and a transverse partition 23 as shown in Figs. 2 and 3. Opening throughthe end 22 into the chamber formed within the cylindrical member 21 area multiplicity of pipes 25 f elongated or oval cross section as clearlyindicated in Fig. 3. As shown, there are eight of these pipes, four ofwhich communicate with the chamber 26 formed on one side of thepartition 23 and the other four communicate with the chamber 27 formedon the other side of the partition 23. An inlet pipe 28 and an outletpipe 29 per: mit the water to be heated to enter and leave the interiormember. Spreader plates 30 and 31 are positioned immediately above theopening from pipes 28 and 29 insuring that the water in circulating neither side of the partition 23 shall go through all of the members 25.ends are united and open into a ring 33 shown in Figs, 1 and 4 whichprovides a circular channel 34 in communication with the interior ofeach of the pipe members 25. All

of the pipe members therefore are in communication at one end, throughthe channel 3% formed in ring 33 and at the other end the pipe memberscommunicate with the base member 15, but only half of said members witheach of chambers 26 and 27 formed in said base member. It will thus beseen that several tubes 25 (in the example shown there being eight'innumber) are not only formed s s to provide a perfect circulatoryarrangement with the fluid to be heated, going one way through half thetubes and the other way through the other half of the tubes, but thetubes are rigidly held at both ends in their separated and spacedrelation. The ring 33 is provided with a multiplicity ofpassage-waysclosed by screw plugs 35 by which access may be had to the interior ofthe several pipes 25 for cleaning or other purposes. These passage-wayshave a still more important function forit is by this means that thecore member formed within the various tubes may be removed aftercasting. This is an These members at their other important feature of myinvention and one which is essential for its eilicient practlce, thatthe core member consisting of tubes 25 and the connecting and holdingbases at tudinal grooves 37 and 38 which receive.

flanges 39 nd 40 On diametrically opposite pipes 25 which are connectedat thelr center with a web 41, thus forming a partition which dividesthe space within shell 11 into two equal portions. The web 41 terminatessome distance before reaching the end of the shell, as indicated at 4.2in F 'ig. 1. The steam or hot water pipe 19 admits hot water or steaminto the interior of shell 11 and said hot Water or steam is constrainedby partition -41 to fiow from one end of the chamber within the shell tothe other end thereof where it passes through and around the ends oftubes 25 and over the end 42 of the partition 41 and back through theother half of the chamber'to the return or outlet pipe 20. During allthis flow'the heating medium is in intimate contact .with the extendedwalls of the oval shaped pipes 25 wherein water is circulating throughinlet from pipe 28 and outlet through pipe '29. The efl'ect of this isto heat pratically instantaneously the water within the tubes 25 and tokeep this water heated while the same is being withdrawn.

The advantages of my invention will be apparent. It can be, and has beenin practice, made entirely of. two castings, the in ner core casting 10and the outer shell castmay be employed in the laundry, and a thirdheater in the bath room. Thus no long runs of pipe are required fordelivering the hot -water with the consequent loss of heat throughradiation. There is no necessity of a great tank which over-heatsthe'kitchen or place of storage during the period when water'is not usedand which, durin times of hot fire in the furnace may rum 1e and boiland cause discomfort and frequently injury through explosion of theheating coil in the furnace There is absolutely no loss of heatefficiency when hot Water is not being withdrawn. The heating mediumwill simply flow past the water containing core member, which beingheated to the same temperature as theheatin'g medium has no effect uponit excepting only during the periods when hot water is being withdrawn.

I claim:

1. A water heater comprising a shell, a' core member formed of amultiplicity of tubes secured in water tight relation within the shell,said core having flanges to slidably engage grooves in the interior wallof said shell, means on the core member for dividing the chamber withinthe shell into two communicating parts, means for introducing andwithdrawin the fluid to be heated into and from the tu es so as to causeit to circulate through the same, and means for introducing a heatedfluid into one chamber of'the shell and withdrawing it from the otherchamber of the shell whereby said heated fluid is caused to circulatearound all said tubes.

2. A water heater comprising an outer shell, an inner core member formedof a multiplicity of tubes secured in water tight relation within theshell, said core having flanges to slidably engage grooves in theinterior wall of said shell, means placing all of said tubes incommunication at one end of the core member, a pair of chambers at theother end of the core, each chamber communicating with one-half of saidtubes, a pipe for introducing the fluid to be heated into one of saidchambers, a pipe for with- 1 drawing said fluid from the other of saidchambers, and means for circulating the heated fluid within the shellabout all of said. tubes, I

3. A' water heater comprisin an outer shell having a pair of diametricay opposite longitudinal grooves, an inner core member formed of amultiplicity of tubes secured in water tight relation within the shell,a partition formed in conjunction with two of said tubes and havingportions entering said grooves for dividing the chamber within the shellinto two communicatingparts, means for permittingthe fluid to be heatedto circulate through the tubes, inlet and outlet pipes respectively forintroducing the heated fluid into the shell at one end of said partitionand withdrawing it from the shell at the other side of the partitionwhereby said heated fluid is caused to circulate around all of saidtubes.

4. A water heater comprisin an elongated cast iron shell with a closedand an open end, an integral peripheral flange. extended from the edgeof the open end, a cast iron core member having a base chamber and amultiplicity of tubes in. communication therewith and extending .withinthe shell, means on said core member for dividing the space within theshell into two equal portions comintegral with and in communication witheach of said tubes at their. other ends, said ring having core openingspositioned opposite the end of each tube and screw plugs in said coreopenings and a cylindrical jacket inclosing said tubes. 4

6. A water heater comprising an inner casting consisting of a basehaving a transverse partition dividing the same into two compartments,two sets of tubes cast integrally with said base one set formed incommunication with each of said compartments, a tubularring castintegrally and in communication with all of said tubes at the other end,a pipe for admitting the fluid to be heated into one of saidcompartments, a pipe for withdrawing said fluid from the other of saidcompartments, and means on said core member for dividing the spacewithin the shell into two equal portions communicating with each otherat one end.

7. A water 'heater comprising an inner casting consistlng of a basehaving a transverse partition dividing the same into two compartments,two sets of tubes cast integrally with said base one set formed incommunication with each of said compartments, a tubular ring castintegrally and in communication with all of said tubes at the other end,a pipe for admitting the fluid to be heated into one of saidcompartments,-

a. pipe for withdrawing said fluid from the other of said compartments,and a spreader fin within each of said compartments extended over theipe opening to cause the fluid to be distributed .to all of the tubescommunicating with the respective compartments.

8. A water heater comprising an inner casting consisting of acylindrical base, a multiplicity of tubes 'eachin communication with thebase at one end of said tubes, a hollow ring cast integral and incommunication with each of said tubes at their other ends, said castingalso comprising a transverse artition formed integral with'some of saidtubes and with said base, and an outer shell'having grooves forreceiving the edges of said partition to hold the tubes of said innercasting in fixed position within the. shell.

In testimony whereof I hereunto affix my signature.

VIRGIL F. DECKERTL

